Metallurgical apparatus – Process
Patent
1996-11-07
1998-12-29
Sheehan, John
Metallurgical apparatus
Process
266 56, 266 73, 266 67, 228 7, 228 45, C21B 1300
Patent
active
058536558
ABSTRACT:
A remote controlled welding and cutting carriage, with an automated positioning arm, to facilitate welding and cutting of flat and curved surfaces including plate and pipe without the use of track, band or similar carriage positioning or guidance mechanisms. Multiple motor driven precision ground magnetic wheel sets align and propel the carriage across a surface. Precision maintenance of magnetic wheel position is facilitated by use of spring steel axles which resist distortion from impacts. A separate magnetic wheel set alignment adjustment is provided to correct magnetic wheel set positioning. The system of motor driven magnetic wheel sets permits the carriage, or carriages, to transport cutting and welding materials required for welding and cutting around the complete circumference of a pipe or other surface regardless of orientation or slope. One or a plurality of motor driven torch positioning arms with photo sensors will track patterns delineated, for example, with a reflective tape or guidance line for additional accuracy in the positioning of the torch or welding head. The torch positioning arm may additionally be positioned, for simple as well as complex patterns, by computer and computer program guidance. Multiple welding heads or cutting torches may be positioned via the manual or automated positioning arm and carriage. A variety of transmission devices including chain and gear, worm gears, and reduction gears are powered by a power source including electrical motors, including variable speed electrical motors, to rotate the magnetic wheel sets. Travel speed of the carriage may be varied.
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Ivey Floyd E.
Sheehan John
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